Laboulbeniomycetes (Fungi, Ascomycota) of Denmark Author Santamaria, Sergi Unitat de Botànica, Departament de Biologia Animal, de Biologia Vegetal i d’Ecologia, Facultat de Biociències, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès (Barcelona), Spain. sergi.santamaria@uab.cat Author Pedersen, Jan Natural History Museum of Denmark (Zoological Museum), University of Copenhagen, Universitetsparken 15, 2100 København Ø, Denmark. japedersen@snm.ku.dk text European Journal of Taxonomy 2021 2021-11-26 781 1 425 http://dx.doi.org/10.5852/ejt.2021.781.1583 journal article 305924 10.5852/ejt.2021.781.1583 592281fb-ec34-447a-869b-e2722722534e 2118-9773 5828924 Corethromyces henrotii Balazuc ex Balazuc MB#283407 Fig. 47C–D Bulletin Mensuel de la Société Linnéenne de Lyon 42 (10): 283 ( Balazuc 1973b , as henroti ) . – Type : “ Sur Choleva oblonga Latreille ( Coleoptera , Leiodidae ) de Mouthier-Hautepierre (Doubs), H. Henrot leg.”; PC . [ France ] [No. 74.34, Santamaria 2003 ] Corethromyces henrotii Balazuc ( Balazuc 1971c: 252 ) (nom. inval.) [MB#541473] Diagnostic features Cell I small, with the dark pigmentation of the foot sometimes extending upwards. Appendage consisting of a rather large basal cell III bearing crowded fertile and sterile branches ( Fig. 47C ). Fertile branches slender, including intercalary antheridia. Cell VI inflated. Perithecium showing a shaded preapical region with a dark spot on the posterior side ( Fig. 47C , arrow). [Detailed descriptions: Santamaria 2003 ; De Kesel & Haelewaters 2019 ] Distribution and hosts Only on Choleva (Col. Leiodidae ) from Belgium , Czech Republic , Finland , France , Italy , Spain , and the Netherlands ( De Kesel & Haelewaters 2019 ). Collections examined from Denmark On Choleva agilis (Illiger, 1798) (Col. Leiodidae ) DENMARK – Nordøstsjaelland (NEZ) • Hillerød ; 55°55.714′ N , 12°18.383′ E ; UC30; Oct. 1904 ; J.P. Johansen Dry0059 ; J.P. Johansen det.; ZMUC C-F-124125 . On Choleva fagniezi Jeannel, 1922 (Col. Leiodidae ) DENMARK – Østjylland (EJ) • Skaerbro Kaer ; 56°4.588′ N , 9°46.314′ E ; NH41; 24 Apr. 1998 ; V. Mahler DrY0060 ; V. Mahler det.; ZMUC C-F-124126 . On Choleva jeanneli Britten, 1922 (Col. Leiodidae ) DENMARK – Lolland, Falster, Møn (LFM) • Lindeskov ved Nykøbing ; 54°44.747′ N , 11°53.917′ E ; PF87; 14 May 1994 ; JP DrY0061 ; JP det.; ZMUC C-F-124127 . – Nordvestsjaelland (NWZ) • Yderby Lyng ; 55°59.039′ N , 11°19.178′ E ; PH40; 12 Apr. 2020 ; JP 1596 ; JP det.; ZMUC C-F-124356 . On Choleva oblonga Latreille, 1807 (Col. Leiodidae ) DENMARK – Østjylland (EJ) • Klostermølle ; 56°2.432′ N , 9°41.629′ E ; NH41; 12 Mar. 2017 ; JP 278 ; JP det.; ZMUC C-F-122757 . Remarks First record from Denmark . Some of the studied thalli belong to the unusual forms described by De Kesel & Haelewaters (2019) , which are characterized by having a darkened cell III ( Fig. 47D ), a feature not considered enough important by those authors to separate them as a new species; our material is not in a good enough condition to be adequately studied, but the option of a new species should not be ruled out.